Question 1 Investigative Process The conclusion must give

Question 1 Investigative Process The conclusion must give an answer to the investigative question. True or False TRUE: That is the point of the whole inquiry, and how the Conclusion stage relates to the Problem stage.

Question 2 Investigative Process An appropriate comparative investigative question compares two groups. True or False TRUE: We want to see if we have evidence from the sample that the two populations from which these groups are drawn are different

Question 3 Investigative Process It is important to link our analysis of the data with the investigative question. True or False TRUE: The whole purpose of the analysis is to help us answer the investigative question

Question 4 Investigative Process An investigative question must start with the words "I wonder. . . ". True or False FALSE: When you are thinking about an investigative question, the words "I wonder" can be helpful, but you do not need to have them in the actual investigative question.

Question 5 Suitable Comparative Investigative Question The following is a suitable comparative investigative question: Is the median distance students who own cars live from university different from the median distance that students who do not own cars live from university? Trueis or FALSE: this not. False a suitable comparative investigative question. It includes most of the important elements - variable, groups and parameter. It is about the population, and it is comparative. But it doesn't give the expected outcome.

Question 6 Suitable Comparative Investigative Question The following is a suitable comparative investigative question: Is the median number of hours students who own cars spend in paid work more than the median number of hours students who do not own cars spend in paid work for students in NZ? True or False FALSE: this is a suitable comparative investigative question. It includes all the important elements - variable, groups, parameter and expected outcome. It is about the population, and it is comparative.

Question 7 Errors in a Comparative Investigative Question The following is not a suitable comparative investigative question. One thing wrong is that it is not about the population. Is the median number of hours students taking four or more papers spend in paid work less than 10? True or False TRUE: the problem with this question isn't that it is not about the population. It is worded correctly to be about the population. The problem is that it is not a comparative question as there is only one group mentioned.

Question 8 Errors in a Comparative Investigative Question The following is not a suitable comparative investigative question. One thing wrong is that it is not a comparative problem. Is the median for Toyota sedan cars made in 2005 less than the median for Toyota sedan cars made in 2006? True or False FALSE: the problem with this question isn't that it is not a comparative problem. The problem is that the variable is not well defined. The question could be about price, km travelled or something else.

Question 9 Errors in a Comparative Investigative Question The following is not a suitable comparative investigative question. One thing wrong is that it does not clearly state what the groups are. Is the median amount of student loan owing for one group of students greater than the median amount of student loan owing for the other students? True or False TRUE: this does not clearly state what the groups are. You need to clearly define what the groups are and not just call them "one group" and "other".

Question 10 Errors in a Comparative Investigative Question The following is not a suitable comparative investigative question. One thing wrong is that it does not clearly define the variable being measured. Is the usage of Toyota sedan cars made in 2005 less than the usage of Toyota sedan cars made in 2006? True or False TRUE: this does not clearly define the variable being measured. It should say something about distance travelled, and should also include the parameter, the median.

Question 11 Errors in a Comparative Investigative Question The following is not a suitable comparative investigative question. One thing wrong is that it does not give a parameter. Is the median distance travelled by Toyota sedan cars made in 2005 in our sample less than the median distance travelled by Toyota sedan cars made in 2006? True or False Correct, the problem with this question isn't that it does not give a parameter. This does give a parameter - the median. However it refers to the sample rather than the population, so is not a suitable investigative question.

Question 12 Errors in a Comparative Investigative Question The following is not a suitable comparative investigative question. One thing wrong is that it does not give an indication of the expected outcome. Is the number of hours students taking four or more papers spend in paid work less than the number of hours students taking three or fewer papers spend in paid work True or False Correct, the problem with this question isn't that it does not give an indication of the expected outcome. It says "less than" so does indicate the expected outcome. However it doesn't give the appropriate parameter, in this case the median.